Your algorithm will keep track of a customer's purchases at the local fireworks stand. Customers will not know exactly how many items they will purchase, so using a For loop on this lab is not allowed. Let's keep the rules simple.
• Accept the dollar value of each item purchased from the user until the user is finished.
• When purchases are complete, enter a sentinel value of -1 (indicating that the user has finished).
• If the item purchased is $50.00 or more, give your customer a 10% off